JP5567542B2 - Air conditioning method and air conditioner - Google Patents

Air conditioning method and air conditioner Download PDF

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JP5567542B2
JP5567542B2 JP2011256112A JP2011256112A JP5567542B2 JP 5567542 B2 JP5567542 B2 JP 5567542B2 JP 2011256112 A JP2011256112 A JP 2011256112A JP 2011256112 A JP2011256112 A JP 2011256112A JP 5567542 B2 JP5567542 B2 JP 5567542B2
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大塚  雅生
白市  幸茂
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シャープ株式会社
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本発明は、居室の壁を利用して空気調和する空気調和方法および空気調和機に関する。   The present invention relates to an air conditioning method and an air conditioner that perform air conditioning using a wall of a living room.
図10は、一般的な壁掛けタイプの空気調和機を構成する室内機1が居室の側壁に取り付けられ、冷房状態にある居室Rの透視斜視図である。従来の冷房時における空気調和方法の一例としては、居室Rの側壁に取り付けられた室内機1から調和空気を図10の矢印に示すように水平乃至下方向に送出して居室R内を冷房する。   FIG. 10 is a perspective view of the room R in which the indoor unit 1 constituting a general wall-hanging type air conditioner is attached to the side wall of the room and is in a cooling state. As an example of a conventional air conditioning method during cooling, the inside of the room R is cooled by sending conditioned air from the indoor unit 1 attached to the side wall of the room R horizontally or downward as indicated by the arrows in FIG. .
特開平10−185290公報(図1)JP-A-10-185290 (FIG. 1) 特開平6−347060公報(図1)JP-A-6-347060 (FIG. 1)
図11は、図10に示した居室Rを設定温度(28℃)で冷房運転した場合の安定状態における居室内の温度分布を示す図である。居室Rはマンション等の集合住宅の最上階に位置し、居室Rの大きさは6畳(高さ2400mm、横3600mm、奥行き2400mm)である。計測ポイントは図10に一点鎖線Dで示した居室Rの中央断面を600mm間隔で高さ方向と横方向にそれぞれ6点・8点の合計48点を計測している。また、冷房安定状態での気流は風量が微風で、吹出しの風向が略水平方向になっている。   FIG. 11 is a diagram showing the temperature distribution in the room in a stable state when the room R shown in FIG. 10 is cooled at a set temperature (28 ° C.). The living room R is located on the top floor of an apartment house such as an apartment, and the size of the living room R is 6 tatami mats (height 2400 mm, width 3600 mm, depth 2400 mm). The measurement points are a total of 48 points of 6 points and 8 points in the height direction and the horizontal direction at 600 mm intervals in the central cross section of the room R indicated by the alternate long and short dash line D in FIG. Further, the airflow in the cooling stable state has a slight air volume, and the blowing air direction is substantially horizontal.
同図によると、居室Rの天井壁近傍の上層部に設温度28℃よりも室温が3℃乃至4℃高い領域が存在し、また、居室Rの中央部に設定温度28℃よりも約5℃低い領域が存在する。従って、居室Rの上部には略水平方向に等温線が現れ、8℃〜9℃の温度のばらつきが生ずる。即ち、居室R内の上下方向での温度ばらつきが大きくなるという問題があった。特に住宅の最上階の部屋においては上記のような温度分布になる傾向が極めて強い。また、屋上が太陽に熱せられて天井壁が熱源となるため居室R内の冷房が効率よく行なわれないといった問題もあった。また、空気調和機の室内機1周囲の温度は上記理由により高温になっており、空気調和機の室内機1の吹出口から送出される調和空気(図10のB')は、上記理由により高温になった室内機1周囲の空気よりも比重が大きく、そのため重力により下降し、居室R中央部の居住空間に降り注ぐ。同図によると、居室Rの中央部に設定温度28℃よりも約5℃低温の風が降り注いでいる。このため、設定温度付近に達した状態で送風を継続すると使用者に常に冷たい風が当たり続け、使用者に不快感を与えるとともに、局所的に使用者の体温を低下させて健康に害を与えるという課題があった。 According to the figure, than the set temperature 28 ℃ at the top of the ceiling near wall of the room R exists room temperature 3 ° C. to 4 ° C. higher region, than the set temperature 28 ℃ in central room R about There is a 5 ° C lower region. Therefore, an isotherm appears in the upper part of the living room R in a substantially horizontal direction, and a temperature variation of 8 ° C. to 9 ° C. occurs. That is, there is a problem that the temperature variation in the vertical direction in the living room R increases. In particular, the temperature distribution as described above tends to be extremely strong in the top floor room of the house. Moreover, since the roof was heated by the sun and the ceiling wall became a heat source, there was a problem that the cooling in the living room R was not performed efficiently. Further, the temperature around the indoor unit 1 of the air conditioner is high for the above reason, and the conditioned air (B ′ in FIG. 10) sent from the air outlet of the indoor unit 1 of the air conditioner is for the above reason. The specific gravity is larger than that of the air around the indoor unit 1 that has become high temperature, so that it descends due to gravity and falls into the living space in the center of the living room R. According to the figure, wind having a temperature lower by about 5 ° C. than the set temperature of 28 ° C. is pouring into the center of the living room R. For this reason, if the air flow is continued in the state where the temperature has reached the preset temperature, the cold wind will continue to hit the user, causing the user to feel uncomfortable, and locally lowering the user's body temperature and harming the health. There was a problem.
本発明は、上記の課題に鑑みてなされたものであり、熱を持った天井壁を冷却して吹出口から送出された調和空気がコアンダ効果により天井壁に沿って流れるようにすることにより居室内全体の温度分布を均一にする空気調和方法および空気調和機を提供することを目的とする。   The present invention has been made in view of the above problems, and by cooling the ceiling wall with heat and allowing the conditioned air sent from the outlet to flow along the ceiling wall by the Coanda effect, An object of the present invention is to provide an air conditioning method and an air conditioner that make the temperature distribution of the entire inside uniform.
上記目的を達成するために本発明は、居室内の空気を吸込口から吸い込み、調和した空気を居室内の側壁上部に設けた吹出口から送出して居室内の空気を調和する空気調和方法において、前記吹出口から冷気を天井壁に向けて斜め上方に送出するステップと、天井壁に到達した冷気が天井壁を結露しない程度に冷却するステップと、を含み、冷気を天井壁、前記吹出口に対向する壁面、床面、前記吹出口側の壁面に順次伝わせた後、前記吸込口から吸い込んで居室内を空気調和することを特徴としている。この構成によると、天井壁に向けて斜め上方に吹出した調和空気(冷気)で天井壁を結露しない程度の温度まで冷却することによって、天井壁と調和空気との間の暖気介在を抑制することによりコアンダ効果の低下を抑制し、居室内の温度分布を略均一にすることができる。   In order to achieve the above object, the present invention provides an air conditioning method for harmonizing air in a living room by sucking air in the living room from a suction port and sending out harmonized air from an air outlet provided on the upper side wall of the living room. A step of sending cool air obliquely upward from the air outlet toward the ceiling wall, and a step of cooling the air so that the cold air reaching the ceiling wall does not condense the ceiling wall. After sequentially transmitting to the wall surface, the floor surface, and the wall surface on the air outlet side, the air is conditioned in the living room by sucking from the suction port. According to this configuration, the conditioned air (cold air) blown obliquely upward toward the ceiling wall is cooled to a temperature at which the ceiling wall is not condensed, thereby suppressing the warm air between the ceiling wall and the conditioned air. Thus, the decrease in the Coanda effect can be suppressed, and the temperature distribution in the living room can be made substantially uniform.
また本発明は、居室内の側壁上部に空気調和機を取り付けて、居室内の空気を前記空気調和機の吸込口から吸い込み、調和した空気を前記空気調和機の吹出口から送出して居室内の空気を調和する空気調和方法において、前記空気調和機の冷房運転時に、前記吹出口から冷気を天井壁に向けて斜め上方に送出するステップと、天井壁に到達した冷気が天井壁を結露しない程度に冷却するステップと、を含み、冷気を天井壁、前記空気調和機に対向する壁面、床面、前記空気調和機側の壁面に順次伝わせた後、前記吸込口から吸い込んで居室内を空気調和することを特徴としている。   The present invention also provides an air conditioner mounted on the upper side wall of the living room, sucks air in the living room from the air inlet of the air conditioner, and sends out the conditioned air from the outlet of the air conditioner. In the air conditioning method for harmonizing the air, a step of sending cool air obliquely upward from the outlet toward the ceiling wall during cooling operation of the air conditioner, and the cold air reaching the ceiling wall does not condense the ceiling wall Cooling the air to a ceiling wall, a wall surface facing the air conditioner, a floor surface, and a wall surface on the air conditioner side in order, and then sucking in the interior of the room from the air inlet It is characterized by air conditioning.
また本発明は、上記構成の空気調和方法を実現する空気調和機であって、前記吸込口から前記吹出口に連通する送風経路を備え、前記吹出口は本体下部に設けられるとともに、調和空気を略水平方向乃至下方向に送出する第1開口部と、前記第1開口部の上方に配されて調和空気を上方に送出する第2開口部とを有し、前記第2開口部は、前記送風経路から上方に傾斜して分岐する分岐通路により前記送風経路と連通していることを特徴としている。   In addition, the present invention is an air conditioner that realizes the air conditioning method having the above-described configuration, and includes an air passage that communicates from the suction port to the air outlet, and the air outlet is provided at a lower portion of the main body, and conditioned air is supplied. A first opening that sends out in a substantially horizontal direction to a downward direction; and a second opening that is arranged above the first opening and sends out conditioned air upward, wherein the second opening is It is characterized in that the air passage is communicated with the air passage by a branch passage which is inclined upward from the air passage.
また本発明は、上記構成の空気調和機において、風向を可変する風向板が、略水平方向乃至下方向へ送出される空気の経路を遮って空気を上方へ案内する第1位置と、前記経路を開放して略水平方向乃至下方向へ空気を導く第2位置との間を移動可能に前記吹出口に設けられ、冷房運転時には、前記風向板が第1位置に移動して前記吹出口から調和空気を天井壁に向けて斜め上方に導くことを特徴としている。   According to the present invention, in the air conditioner having the above-described configuration, the wind direction plate that changes the wind direction interrupts the path of the air that is sent out in a substantially horizontal direction to the lower direction and guides the air upward, and the path Is opened at the blowout port so as to be movable between a second position for guiding air in a substantially horizontal direction to a downward direction, and during the cooling operation, the wind direction plate moves to the first position from the blowout port. It is characterized in that the conditioned air is guided obliquely upward toward the ceiling wall.
本発明の空気調和方法によると、居室の天井壁を冷却して居室内の空気を調和するので、居室内の温度分布を略均一にすることができる。   According to the air conditioning method of the present invention, the ceiling wall of the living room is cooled to harmonize the air in the living room, so that the temperature distribution in the living room can be made substantially uniform.
また本発明の空気調和機によると、居室の天井壁に向けて斜め上方に調和空気を送出し、居室の天井壁を冷却して居室内の空気を調和するので、上記の効果を簡単な装置にて実現できる。   Further, according to the air conditioner of the present invention, the conditioned air is sent obliquely upward toward the ceiling wall of the living room, and the ceiling wall of the living room is cooled to harmonize the air in the living room. Can be realized.
本発明による第1実施形態の空気調和機の室内機を示す概略側面断面図である。It is an outline side sectional view showing the indoor unit of the air harmony machine of a 1st embodiment by the present invention. 本発明による第1実施形態の空気調和機の冷凍サイクルを示す回路図である。It is a circuit diagram which shows the refrigerating cycle of the air conditioner of 1st Embodiment by this invention. 本発明の第1実施形態の空気調和方法による居室内の気流を示す斜視図である。It is a perspective view which shows the air flow in a living room by the air conditioning method of 1st Embodiment of this invention. 本発明の第1実施形態の空気調和方法による居室中央部断面の温度分布を示す図である。It is a figure which shows the temperature distribution of the room center part cross section by the air conditioning method of 1st Embodiment of this invention. 本発明による第1実施形態の室内機の動作を示す概略側面断面図である。It is a schematic sectional side view which shows operation | movement of the indoor unit of 1st Embodiment by this invention. 本発明による第1実施形態の空気調和機の室内機から送出される気流を示す斜視図である。It is a perspective view which shows the airflow sent from the indoor unit of the air conditioner of 1st Embodiment by this invention. 本発明による第2実施形態の空気調和機の室内機を示す概略側面断面図である。It is a schematic sectional side view which shows the indoor unit of the air conditioner of 2nd Embodiment by this invention. 本発明による第3実施形態の空気調和システムによる居室内の気流を示す斜視図である。It is a perspective view which shows the airflow in the living room by the air conditioning system of 3rd Embodiment by this invention. 本発明による第3実施形態の空気調和システムによる居室中央部断面の温度分布を示す図である。It is a figure which shows the temperature distribution of the room center part cross section by the air conditioning system of 3rd Embodiment by this invention. 従来の空気調和方法による居室内の気流を示す斜視図である。It is a perspective view which shows the airflow in the living room by the conventional air conditioning method. 従来の空気調和方法による居室中央部断面の温度分布を示す図である。It is a figure which shows the temperature distribution of the room center part cross section by the conventional air conditioning method.
以下に本発明の空気調和方法および空気調和機についての実施形態を図面参照しながら説明する。説明の便宜上、従来例の図10および図11と同様の部分については同一の符号を付している。ここで、本明細書の記載に用いる方向的記載の定義について説明する。本明細書において、室内機1の後面というときは室内機1が壁面に設置される際に室内機1と壁面とが接している面をいうものとし、室内機1の前面というときは前記後面の反対側の面をいうものとする。そして、前記後面から前面に向かう方向を前方、前記前面から後面に向かう方向を後方と称する。   Embodiments of an air conditioning method and an air conditioner according to the present invention will be described below with reference to the drawings. For convenience of explanation, the same reference numerals are given to the same parts as those in the conventional example shown in FIGS. Here, the definition of the directional description used for description of this specification is demonstrated. In this specification, the term “rear surface of the indoor unit 1” refers to the surface where the indoor unit 1 and the wall surface are in contact with each other when the indoor unit 1 is installed on the wall surface, and the term “rear surface” refers to the front surface of the indoor unit 1. The opposite side of The direction from the rear surface to the front surface is referred to as the front, and the direction from the front surface to the rear surface is referred to as the rear.
また、室内機1の上面というときは室内機1が設置される居室の天井側の面をいうものとし、室内機1の下面というときは前記上面の反対側の面をいうものとする。そして、前記下面から上面に向かう方向を上方、前記上面から下面に向かう方向を下方と称する。また、気流の吹き出し方向に関し、吹出口5から水平面に対して平行に送出される場合を水平方向吹出し、水平方向吹出しに対して上方に正の角をなして送出される場合を上方吹出し、水平方向吹出しに対して下方に正の角をなして送出される場合を下方吹出しと称する。これら方向的記載は室内機1のみに限らず使用する場合がある。   The upper surface of the indoor unit 1 refers to the surface on the ceiling side of the living room where the indoor unit 1 is installed, and the lower surface of the indoor unit 1 refers to the surface opposite to the upper surface. A direction from the lower surface to the upper surface is referred to as an upper direction, and a direction from the upper surface to the lower surface is referred to as a lower direction. Moreover, regarding the blowing direction of the air flow, the case where the air is sent out from the outlet 5 in parallel to the horizontal plane is blown out in the horizontal direction, and the case where the air is sent out at a positive angle with respect to the horizontal direction is blown out upward, A case where a positive angle is sent downward with respect to the direction blowing is referred to as a downward blowing. These directional descriptions are not limited to the indoor unit 1 and may be used.
図1は第1実施形態の空気調和機の室内機1を示す概略側断面図である。空気調和機の室内機1は、キャビネット2により本体部が保持されている。キャビネット2は後面に爪部(不図示)が設けられており、室内の壁に取り付けられた取付板(不図示)に該爪部を嵌合することにより支持される。キャビネット2の前面側には、本体部を覆うようにフロントパネル3が着脱自在に取り付けられている。キャビネット2の上面部には吸込口4aが設けられており、フロントパネル3の上端とキャビネット2との隙間によって吸込口4cが形成されている。   FIG. 1 is a schematic sectional side view showing an indoor unit 1 of an air conditioner according to a first embodiment. The indoor unit 1 of the air conditioner has a main body held by a cabinet 2. The cabinet 2 is provided with a claw portion (not shown) on the rear surface, and is supported by fitting the claw portion to a mounting plate (not shown) attached to an indoor wall. A front panel 3 is detachably attached to the front side of the cabinet 2 so as to cover the main body. A suction port 4 a is provided on the upper surface of the cabinet 2, and a suction port 4 c is formed by a gap between the upper end of the front panel 3 and the cabinet 2.
フロントパネル3の下端部とキャビネット2の下端部との間隙には、室内機1の幅方向に延びる略矩形の第1、第2開口部5a、5bから成る吹出口が形成されている。第1、第2開口部5a、5bには明確な境界が形成されないが、便宜上吹出口の下部を第1開口部5aとし、上部を第2開口部5bとしている。また、第2開口部5bの上方には室内機1の幅方向に延びる略矩形の溝部28が形成されている。   In the gap between the lower end portion of the front panel 3 and the lower end portion of the cabinet 2, a blowout port including first and second opening portions 5 a and 5 b that are substantially rectangular extending in the width direction of the indoor unit 1 is formed. A clear boundary is not formed in the first and second openings 5a and 5b, but for convenience, the lower part of the outlet is the first opening 5a and the upper part is the second opening 5b. A substantially rectangular groove 28 extending in the width direction of the indoor unit 1 is formed above the second opening 5b.
室内機1の内部には、吸込口4a、4cから吹出口に連通する送風経路6が形成されている。送風経路6内のキャビネット2の前方には空気を送出する送風ファン7が配されている。送風ファン7として、例えばクロスフローファン等を用いることができる。   Inside the indoor unit 1, a blower path 6 that communicates from the suction ports 4 a and 4 c to the blower outlet is formed. A blower fan 7 that sends out air is disposed in front of the cabinet 2 in the blower path 6. As the blower fan 7, for example, a cross flow fan or the like can be used.
フロントパネル3に対向する位置には、吸込口4a、4cから吸い込まれた空気に含まれる塵埃を捕集・除去するエアフィルタ8が設けられている。送風経路6中の送風ファン7とエアフィルタ8との間には、室内熱交換器9が配置されている。フロントパネル3と室内熱交換器9との間には所定間隔の空間が設けられており、吸込口4a、4cから取り入れられた空気が該空間を通って室内熱交換器9と広い面積で接触するようになっている。   An air filter 8 that collects and removes dust contained in the air sucked from the suction ports 4 a and 4 c is provided at a position facing the front panel 3. An indoor heat exchanger 9 is disposed between the blower fan 7 and the air filter 8 in the blower path 6. A space of a predetermined interval is provided between the front panel 3 and the indoor heat exchanger 9, and air taken in from the suction ports 4a and 4c contacts the indoor heat exchanger 9 over a wide area through the space. It is supposed to be.
室内熱交換器9は圧縮機62(図2参照)に接続されており、圧縮機62の駆動により冷凍サイクルが運転される。冷凍サイクルの運転によって、冷房時には室内熱交換器9が周囲温度よりも低温に冷却される。暖房時には、室内熱交換器9が周囲温度よりも高温に加熱される。尚、室内熱交換器9とエアフィルタ8との間には吸い込まれた空気の温度を検知する温度センサ61(図5参照)が設けられ、室内機1の側部には空気調和機の駆動を制御する制御部が設けられている。   The indoor heat exchanger 9 is connected to a compressor 62 (see FIG. 2), and the refrigeration cycle is operated by driving the compressor 62. By operating the refrigeration cycle, the indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling. During heating, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature. A temperature sensor 61 (see FIG. 5) for detecting the temperature of the sucked air is provided between the indoor heat exchanger 9 and the air filter 8, and the side of the indoor unit 1 drives the air conditioner. A control unit is provided for controlling the above.
室内熱交換機9の前後の下部には冷房または除湿時に室内熱交換器9から落下した結露を補集するドレンパン10が設けられている。前方のドレンパン10はフロントパネル3に取り付けられ、後方のドレンパン10はキャビネット2と一体に成形されている。   A drain pan 10 that collects condensation that has fallen from the indoor heat exchanger 9 during cooling or dehumidification is provided in the lower part before and after the indoor heat exchanger 9. The front drain pan 10 is attached to the front panel 3, and the rear drain pan 10 is formed integrally with the cabinet 2.
前方のドレンパン10には、イオン発生装置30が放電面30aを送風経路6に面して設置されている(図5参照)。イオン発生装置30の放電面30aから発生したイオンは送風経路6内に放出され、吹出口5から室内に吹出される。イオン発生装置30は放電電極を有し、コロナ放電によって印加電圧が正電圧の場合は主としてH+(H2O)nから成るプラスイオンを生成し、負電圧の場合は主としてO2 -(H2O)mから成るマイナスイオンを生成する。 The ion generator 30 is installed in the front drain pan 10 with the discharge surface 30a facing the blower path 6 (see FIG. 5). Ions generated from the discharge surface 30 a of the ion generator 30 are discharged into the air blowing path 6 and blown out into the room from the blowout port 5. The ion generator 30 has a discharge electrode, and generates positive ions mainly composed of H + (H 2 O) n when the applied voltage is positive by corona discharge, and mainly O 2 (H when negative. Generates negative ions composed of 2 O) m.
送風経路6内の第1開口部5aの近傍には、外部に臨んで垂直方向の吹出角度を略水平乃至下方向に変更可能な横ルーバ(風向板)11a、11bが設けられている。横ルーバ11a、11bの奥側には左右方向の吹出角度を変更可能な縦ルーバ12が設けられている。   In the vicinity of the first opening 5a in the air blowing path 6, lateral louvers (wind direction plates) 11a and 11b that face the outside and can change the blowing angle in the vertical direction from substantially horizontal to downward are provided. A vertical louver 12 capable of changing the blowing angle in the left-right direction is provided on the back side of the horizontal louvers 11a, 11b.
第2開口部5bは送風経路6から上方に傾斜して分岐する分岐通路13により送風経路6と連通している。送風経路6及び分岐通路13により空気が流通する空気流通経路が構成されている。分岐通路13の開放側端部には、回動軸14aでフロントパネル3に枢支される導風板14が設けられている。なお、導風板14には結露防止のための断熱処理が施されている。   The second opening 5b communicates with the air blowing path 6 by a branch passage 13 that is inclined upward and branches from the air blowing path 6. The air flow path through which air flows is constituted by the air blowing path 6 and the branch path 13. An air guide plate 14 pivotally supported on the front panel 3 by a rotating shaft 14 a is provided at the open end of the branch passage 13. The air guide plate 14 is heat-insulated to prevent condensation.
図2は空気調和機の冷凍サイクルを示す回路図である。空気調和機の室内機1に接続される室外機(不図示)には、圧縮機62、四方切替弁63、室外熱交換器64、送風ファン65及び絞り機構66が設けられる。圧縮機62の一端は冷媒配管67により四方切替弁63を介して室外熱交換器64に接続されている。圧縮機62の他端は冷媒配管67により四方切替弁63を介して室内熱交換器9に接続されている。室外熱交換器64と室内熱交換器9とは冷媒配管67により絞り機構66を介して接続されている。   FIG. 2 is a circuit diagram showing a refrigeration cycle of the air conditioner. An outdoor unit (not shown) connected to the indoor unit 1 of the air conditioner is provided with a compressor 62, a four-way switching valve 63, an outdoor heat exchanger 64, a blower fan 65, and a throttle mechanism 66. One end of the compressor 62 is connected to an outdoor heat exchanger 64 through a four-way switching valve 63 by a refrigerant pipe 67. The other end of the compressor 62 is connected to the indoor heat exchanger 9 via a refrigerant pipe 67 via a four-way switching valve 63. The outdoor heat exchanger 64 and the indoor heat exchanger 9 are connected via a throttle mechanism 66 by a refrigerant pipe 67.
冷房運転を開始すると圧縮機62が駆動されるとともに送風ファン7が回転する。これにより、冷媒が圧縮機62、四方切替弁63、室外熱交換器64、絞り機構66、室内熱交換器9及び四方切替弁63を経て圧縮機62に戻る冷凍サイクル68が形成される。   When the cooling operation is started, the compressor 62 is driven and the blower fan 7 is rotated. Thus, a refrigeration cycle 68 is formed in which the refrigerant returns to the compressor 62 through the compressor 62, the four-way switching valve 63, the outdoor heat exchanger 64, the throttle mechanism 66, the indoor heat exchanger 9, and the four-way switching valve 63.
冷凍サイクル68の運転によって、冷房時には室内熱交換器9が周囲温度よりも低温に冷却される。また、暖房運転時には四方切替弁63が切り替えられて送風ファン65が回転し、上記と逆方向に冷媒が流通する。これにより、室内熱交換器9が周囲温度よりも高温に加熱される。   By operating the refrigeration cycle 68, the indoor heat exchanger 9 is cooled to a temperature lower than the ambient temperature during cooling. Further, during the heating operation, the four-way switching valve 63 is switched and the blower fan 65 rotates, and the refrigerant flows in the opposite direction to the above. Thereby, the indoor heat exchanger 9 is heated to a temperature higher than the ambient temperature.
上記構成の空気調和機において、冷房運転を開始すると、図1に示すように横ルーバ11a、11bは第1開口部5aが少しだけ開いた状態になるように設定され、導風板14は第2開口部5bが開放される位置に設定される。送風ファン7が回転駆動され、室外機(不図示)からの冷媒が室内熱交換器9へ流れて冷凍サイクルが運転される。これにより、室内機1内には吸込口4a、4cから空気が吸い込まれ、エアフィルタ8によって空気中に含まれる塵埃が除去される。   In the air conditioner having the above configuration, when the cooling operation is started, the horizontal louvers 11a and 11b are set so that the first opening 5a is slightly opened as shown in FIG. 2 The opening 5b is set to a position where it is opened. The blower fan 7 is rotationally driven, refrigerant from an outdoor unit (not shown) flows to the indoor heat exchanger 9, and the refrigeration cycle is operated. As a result, air is sucked into the indoor unit 1 from the suction ports 4 a and 4 c, and dust contained in the air is removed by the air filter 8.
室内機1内に取り込まれた空気は室内熱交換器9と熱交換し冷却される。そして、送風経路6及び分岐通路13を流通して吹出口の第2開口部5b及び横ルーバ11a、11bの隙間から矢印A2に示すように前方斜め上方すなわち居室Rの天井壁Sに向けて送出される。この時、分岐通路13の上壁面13aに沿って流通する空気は溝部28によってコアンダ効果が断ち切られ、矢印A2に示すようにフロントパネル3に沿うことなく前方斜め上方に導かれる。   The air taken into the indoor unit 1 is cooled by exchanging heat with the indoor heat exchanger 9. And it distribute | circulates through the ventilation path 6 and the branch channel | path 13, and sends out toward the ceiling wall S diagonally upward, ie, the living room R, as shown by arrow A2 from the clearance gap between the 2nd opening part 5b of a blower outlet, and the horizontal louvers 11a and 11b. Is done. At this time, the air flowing along the upper wall surface 13a of the branch passage 13 is cut off the Coanda effect by the groove 28, and is guided obliquely upward and forward along the front panel 3 as indicated by the arrow A2.
図3は前方斜め上方に送出された冷気流の居室R内での流れを示している。第1、第2開口部5a、5b(図1参照)から前方斜め上方に送出される空気流(B")は室内機1周辺の空気と熱交換しながら居室Rの天井壁Sに到達し、天井壁Sを結露しない程度に先ず冷却する。天井壁Sが冷却されて天井壁Sと空気流(B")との間に暖気が介在しにくくなってコアンダ効果が遠方まで持続することにより天井壁Sから室内機1に対向する壁面、床面、室内機1側の壁面を順次伝って室内機1の両側方から吸込口4a、4cに吸い込まれる。従って、室内機1からの直接風は居室R中央部即ち使用者の居住領域にほとんど降り注ぐことはない。   FIG. 3 shows the flow in the room R of the cold airflow sent obliquely upwards forward. The air flow (B ") sent from the first and second openings 5a and 5b (see FIG. 1) diagonally forward and forward reaches the ceiling wall S of the living room R while exchanging heat with the air around the indoor unit 1. First, the ceiling wall S is cooled to such an extent that the ceiling wall S does not condense.By the cooling of the ceiling wall S, it becomes difficult for warm air to intervene between the ceiling wall S and the air flow (B "), and the Coanda effect continues far away. The air is sucked into the suction ports 4a and 4c from the both sides of the indoor unit 1 through the wall surface, the floor surface facing the indoor unit 1 and the wall surface on the indoor unit 1 side in order from the ceiling wall S. Therefore, the direct wind from the indoor unit 1 hardly falls into the central part of the living room R, that is, the user's living area.
図4は、図3に示す居室Rを冷房運転した時に設定温度(28℃)付近に達した冷房安定状態における室内の温度分布を示している。居室Rの大きさは前述の図10および図11の従来例と同様に6畳(高さ2400mm、横3600mm、奥行き2400mm)であり、計測ポイントは図3に一点鎖線Dで示した居室Rの中央の断面を600mm間隔で高さ方向と横方向にそれぞれ6点・8点の合計48点を計測している。また、冷房安定状態での気流は風量が微風、風向が上方向になっている。   FIG. 4 shows the temperature distribution in the room in the stable cooling state that has reached the set temperature (28 ° C.) when the room R shown in FIG. The size of the room R is 6 tatami mats (height 2400 mm, width 3600 mm, depth 2400 mm) as in the conventional example of FIGS. 10 and 11 described above, and the measurement point of the room R indicated by the alternate long and short dash line D in FIG. A total of 48 points of 6 points and 8 points are measured on the central cross section at intervals of 600 mm in the height direction and the horizontal direction, respectively. Further, the airflow in the cooling stable state has a light air volume and a wind direction upward.
同図によると、居室Rの天井壁近傍に設温度28℃よりも室温が2℃乃至3℃低い領域が存在し、天井壁Sが冷却されている様子がうかがえる。また、居室Rにおいて上記の領域を除いた場所全域、即ち使用者の居住領域全体が設定温度28℃に略一致して温度ばらつきがほとんどなくなっている。 According to the figure, at room temperature than the set temperature 28 ℃ the ceiling near wall of the room R is present 2 ℃ to 3 ° C. lower region, indicating how the ceiling wall S is cooled. Further, in the living room R, the entire place excluding the above-described area, that is, the entire living area of the user substantially coincides with the set temperature 28 ° C., and the temperature variation is almost eliminated.
上記図3および図4から明らかなように、室内機1から送出された調和空気が天井壁Sを冷却し居室R全体を大きく攪拌するため、居室R内の温度分布が設定温度付近で均一になる。即ち、居室Rの上方の一部を除いて、使用者の居住領域全体が設定温度28℃に略一致して温度ばらつきが小さく直接風もほとんど使用者に当たることのない快適空間を得ることができる。   As is clear from FIGS. 3 and 4 above, the conditioned air sent from the indoor unit 1 cools the ceiling wall S and greatly agitates the entire room R, so that the temperature distribution in the room R is uniform around the set temperature. Become. In other words, except for a part above the living room R, the entire living area of the user substantially coincides with the set temperature of 28 ° C., and a comfortable space can be obtained in which the temperature variation is small and direct wind hardly hits the user. .
なお、空気調和機の室内機1は、調和空気を必要に応じて吹出口の第1開口部5aから図5の矢印A1に示すように略水平方向乃至下方向に向けて送出することもできる。図6はこの時の部屋全体の気流を示している。第1開口部5aから水平乃至下方向に送出される空気(B)は、居室R内を矢印に示すように流通して吸込口4a、4cに戻る。空気調和機の冷房運転開始直後、先ずこの空気調和方法にて居室R内を冷却し、居室R内の室温がやや低下した後、上記の天井壁Sを冷却する冷却方法に切り替えても良い。また、これらの制御をリモートコントローラによる使用者の指示により行なえるようにするとより望ましい。   In addition, the indoor unit 1 of an air conditioner can also send conditioned air from the first opening 5a of the air outlet in a substantially horizontal direction to a downward direction as indicated by an arrow A1 in FIG. . FIG. 6 shows the airflow of the entire room at this time. The air (B) sent from the first opening 5a horizontally or downward flows through the room R as indicated by the arrow and returns to the suction ports 4a and 4c. Immediately after the start of the cooling operation of the air conditioner, first, the room R may be cooled by this air conditioning method, and after the room temperature in the room R is slightly lowered, the cooling method may be switched to the cooling method for cooling the ceiling wall S. It is more desirable that these controls can be performed by a user's instruction from a remote controller.
次に、本発明の第2実施形態の空気調和方法および空気調和機について説明する。空気調和機の室内機の形式が図7に示す室内機1bに変更され、その他構成は上記第1実施形態と同一である。上記構成の空気調和機において、冷房運転を開始すると、図7に示すように吹出口5から天井壁Sに向けてA2の方向に気流が送出される。従って、空気調和方法については図3および図4に示す第1実施形態と略同一の結果となり、そのため上記第1実施形態と同様の効果を得ることができる。   Next, an air conditioning method and an air conditioner according to a second embodiment of the present invention will be described. The format of the indoor unit of the air conditioner is changed to the indoor unit 1b shown in FIG. 7, and the other configuration is the same as that of the first embodiment. In the air conditioner having the above-described configuration, when the cooling operation is started, an air flow is sent from the outlet 5 toward the ceiling wall S in the direction of A2, as shown in FIG. Therefore, the air conditioning method has substantially the same result as that of the first embodiment shown in FIGS. 3 and 4, and therefore, the same effect as that of the first embodiment can be obtained.
次に、本発明の第3実施形態の空気調和方法および空気調和機について説明する。第3実施形態の空気調和機は、ダクトエアコンや全館空調システムといった、居室R内に室内機が存在せず、図8のように居室Rの側壁に吹出口5が設置されたタイプの空気調和システム100である。居室Rの側壁に配置された吹出口5から調和空気が居室R内に送出され、吹出口5の略真下の位置には、居室R内の空気を外部に排出する吸込口4が配置されている。   Next, an air conditioning method and an air conditioner according to a third embodiment of the present invention will be described. The air conditioner of the third embodiment is a type of air conditioner in which there is no indoor unit in the living room R, such as a duct air conditioner or a whole building air conditioning system, and the air outlet 5 is installed on the side wall of the living room R as shown in FIG. System 100. Harmonic air is sent into the living room R from the air outlet 5 arranged on the side wall of the living room R, and a suction port 4 for discharging the air in the living room R to the outside is arranged at a position almost directly below the air outlet 5. Yes.
上記構成の空気調和機において、冷房運転を開始すると、図8に示すように吹出口5から前方上方即ち天井壁Sに向けて冷気流が送出される。図9は、図8に示す居室Rを冷房運転した時に設定温度(28℃)付近に達した冷房安定状態における室内の温度分布を示している。居室Rの大きさは前述の図10および図11の従来例と同様に6畳(高さ2400mm、横3600mm、奥行き2400mm)であり、計測ポイントは図3に一点鎖線Dで示した居室Rの中央の断面を600mm間隔で高さ方向と横方向にそれぞれ6点・8点の合計48点を計測している。   In the air conditioner having the above-described configuration, when the cooling operation is started, a cold airflow is sent out from the blowout port 5 toward the front upper side, that is, toward the ceiling wall S as shown in FIG. FIG. 9 shows a temperature distribution in the room in a stable cooling state that has reached the set temperature (28 ° C.) when the room R shown in FIG. The size of the room R is 6 tatami mats (height 2400 mm, width 3600 mm, depth 2400 mm) as in the conventional example of FIGS. 10 and 11 described above, and the measurement point of the room R indicated by the alternate long and short dash line D in FIG. A total of 48 points of 6 points and 8 points are measured on the central cross section at intervals of 600 mm in the height direction and the horizontal direction, respectively.
図8および図9から明らかなように、本実施形態においても図3および図4に示す第1実施形態と略同一の結果となり、そのため上記第1実施形態と同様の効果を得ることができる。   As is apparent from FIGS. 8 and 9, this embodiment also has substantially the same result as that of the first embodiment shown in FIGS. 3 and 4, so that the same effect as that of the first embodiment can be obtained.
なお、本実施形態の空気調和システム100は居室Rの側壁下部に吸込口4が設けられているが、これが省略されている場合や、図8に示されている以外の位置にあってもよい。その場合は居室R内の温度均一化の効果がやや劣化するが、吸込口4の位置に制約がなくなるため、居室Rの初期設計の自由度が高まる。   In addition, although the air inlet system 4 of the air conditioning system 100 of this embodiment is provided in the lower part of the side wall of the living room R, when this is abbreviate | omitted, it may exist in positions other than being shown by FIG. . In that case, although the effect of temperature equalization in the living room R is somewhat deteriorated, the position of the suction port 4 is not restricted, so the degree of freedom in the initial design of the living room R is increased.
以上、本発明に係る空気調和方法および空気調和機の実施形態を説明してきたが、本発明は上記実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で適宜の変更を加えて実施される。なお、居室Rが最上階に配される場合は天井壁Sを冷却するのが最も効果的であるが、居室Rが例えば西日が直接あたる位置に配されている場合には西側の側壁を冷却すればよく、居室Rが例えば南向きに配されている場合には南側の側壁を冷却すればよい。   The embodiments of the air conditioning method and the air conditioner according to the present invention have been described above, but the present invention is not limited to the above embodiments, and appropriate modifications are made without departing from the spirit of the present invention. Implemented. In addition, when the living room R is arranged on the top floor, it is most effective to cool the ceiling wall S. However, when the living room R is arranged, for example, in a position where the sun directly hits, the side wall on the west side is used. What is necessary is just to cool, and the living room R should just cool the south side wall, for example, when it is arranged southward.
1、1b 室内機
2 キャビネット
3 フロントパネル
4a、4c 吸込口
5 吹出口
5a 第1開口部
5b 第2開口部
6 送風経路
7 送風ファン
9 室内熱交換器
11a、11b 横ルーバ
12 縦ルーバ
13 分岐通路
13a 上壁面
14 導風板
20 導風部
25 渦
28 溝部
29 突起部
60 制御部
61 温度センサ
100 空気調和システム
DESCRIPTION OF SYMBOLS 1, 1b Indoor unit 2 Cabinet 3 Front panel 4a, 4c Suction port 5 Outlet 5a 1st opening part 5b 2nd opening part 6 Blower path 7 Blower fan 9 Indoor heat exchanger 11a, 11b Horizontal louver 12 Vertical louver 13 Branch passage 13a Upper wall surface 14 Wind guide plate 20 Wind guide portion 25 Vortex 28 Groove portion 29 Projection portion 60 Control portion 61 Temperature sensor 100 Air conditioning system

Claims (6)

  1. 居室内の側壁上部に空気調和機を取り付けて、居室内の空気を前記空気調和機の上部に設けられた吸込口から吸い込み、調和した空気を前記空気調和機の下部に設けられた吹出口から送出して居室内の空気を調和する空気調和方法において、
    前記空気調和機は前記吸込口と前記吹出口とを連通させる送風経路を備え、
    前記送風経路は前記吹出口の近傍で前方へ行くほど上方になるように傾斜する上壁を有するとともに、前記上壁の終端は前記空気調和機の前面を覆うフロントパネルの下端から離れた位置に形成され、
    前記上壁の終端と前記フロントパネルの下端との間で前記上壁の終端近傍には前記空気調和機の幅方向に延びる溝部が形成されるとともに、前記フロントパネルの外面は前記溝部によって前記上壁の外面から隔てられ、
    前記空気調和機の冷房運転時に、冷気の気流が天井壁に到達するように前記吹出口から前方斜め上方に冷気を送出し、送出された冷気の気流が天井壁に到達するまでに前記空気調和機の周辺の空気と熱交換することにより天井壁を結露しない程度に冷却することを特徴とする空気調和方法。
    An air conditioner is attached to the upper part of the side wall of the living room, the air in the living room is sucked from the suction port provided in the upper part of the air conditioner, and the conditioned air is discharged from the outlet provided in the lower part of the air conditioner In the air conditioning method of sending out and harmonizing the air in the room,
    The air conditioner includes a ventilation path that allows the suction port and the air outlet to communicate with each other,
    The air flow path has an upper wall that is inclined so as to go upward in the vicinity of the air outlet, and the end of the upper wall is located away from the lower end of the front panel that covers the front surface of the air conditioner. Formed,
    Between the end of the upper wall and the lower end of the front panel, a groove portion extending in the width direction of the air conditioner is formed in the vicinity of the end of the upper wall, and the outer surface of the front panel is formed by the groove portion . Separated from the outer surface of the wall,
    During the cooling operation of the air conditioner, the cool air is sent obliquely upward and forward from the outlet so that the cool air flow reaches the ceiling wall, and the air conditioning is performed until the sent cool air flow reaches the ceiling wall. An air conditioning method, wherein the ceiling wall is cooled to a degree of dew condensation by exchanging heat with the air around the machine.
  2. 天井壁に到達した冷気の気流を天井壁に沿って流通させることを特徴とする請求項1に記載の空気調和方法。   The air conditioning method according to claim 1, wherein the airflow of cool air reaching the ceiling wall is circulated along the ceiling wall.
  3. 天井壁に到達した冷気の気流を天井壁に沿って前記側壁に対向する側壁まで流通させることを特徴とする請求項2に記載の空気調和方法。   The air conditioning method according to claim 2, wherein the airflow of the cool air reaching the ceiling wall is circulated along the ceiling wall to the side wall facing the side wall.
  4. 天井壁を冷却することにより天井壁と冷気の気流との間に暖気を介在させにくくして、天井壁に到達した冷気の気流が居室内の中央部に降り注ぐことを防止したことを特徴とする請求項2に記載の空気調和方法。   Cooling the ceiling wall makes it difficult for warm air to intervene between the ceiling wall and the cold airflow, preventing the cold airflow reaching the ceiling wall from falling into the center of the room The air conditioning method according to claim 2.
  5. 請求項1〜4のいずれかに記載の空気調和方法を実現する空気調和機であって、
    前記吹出口は調和空気を略水平方向乃至下方向に送出する第1開口部と、前記第1開口部の上方に配されて調和空気を上方に送出する第2開口部とを有し、
    前記第2開口部は、前記送風経路から上方に傾斜して分岐する分岐通路により前記送風経路と連通していることを特徴とする空気調和機。
    An air conditioner for realizing the air conditioning method according to any one of claims 1 to 4,
    The outlet has a first opening that sends conditioned air in a substantially horizontal direction to a lower direction, and a second opening that is arranged above the first opening and sends conditioned air upward.
    The air conditioner is characterized in that the second opening portion communicates with the air blowing path by a branch passage that branches upwardly from the air blowing path.
  6. 風向を可変する風向板が、略水平方向乃至下方向へ送出される空気の経路を遮って空気を上方へ案内する第1位置と、前記経路を開放して略水平方向乃至下方向へ空気を導く第2位置との間を移動可能に前記吹出口に設けられ、
    冷房運転時には、前記風向板が第1位置に移動して前記吹出口から調和空気を天井壁に向けて斜め上方に導くことを特徴とする請求項5に記載の空気調和機。
    A wind direction plate that varies the wind direction blocks a path of air that is sent out in a substantially horizontal direction or downward direction, guides the air upward, and opens the path to release air in a substantially horizontal direction or downward direction. Provided at the outlet so as to be movable between a second position to be guided;
    6. The air conditioner according to claim 5, wherein, during the cooling operation, the wind direction plate moves to the first position and guides conditioned air obliquely upward toward the ceiling wall from the air outlet.
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